Hi. This should be easy but I can't figure it out. Whenever I accidentally press Shift a few times or even just holding it down at times, this damn irritating 'feature' either produces a pop-up giving the option to enable it or sometimes it is just automatically enabled, (no pop-up) often at the most inconvenient of times! This is with f14.

How do I disable it permanently so that no key presses/combinations will issue a prompt?